Investigate a strange occurrence in the combat simulator.
Defeat a group of Spectre-level opponents on Normal, Hardcore, or Insanity.
Score 9999 points in the combat simulator on Normal, Hardcore, or Insanity.
Throw a party for your friends.
Win a prize at one of the arcade games.
Stop an out-of-control scheme before it's too late.
Infiltrate an enemy stronghold with your crew.
Go undercover to follow a lead.
Discover a plot against you.
Free Omega from Cerberus occupation.
Complete all the Command Center side-missions on Omega.
Find the Talon leader.
Learn more about the Prothean Empire.
Find all required intel to help Eden Prime's colonists.
Uncover an ancient secret.
Rescue a civilian from Reaper forces.
Investigate a sinister conspiracy.
Use clues to pinpoint the exact location of an objective.
Acquire all trophies.
Finish the game on Insanity without changing difficulty after leaving Earth.
Finish all multiplayer maps on Gold or all single-player missions on Insanity.
Hijack an Atlas mech.
Kill 5,000 enemies.
Upgrade any weapon to level 10.
Overload the shields of 100 enemies.
Promote a multiplayer character to the Galaxy at War or import an ME3 character.
Kill 10 guardians with headshots from the front while their shields are raised.
Reach level 20 in multiplayer or level 60 in single-player.
Complete Mass Effect 3 twice, or once with a Mass Effect 2 import.
Mission accomplished.
Make the final assault.
Defeat an old adversary.
Attain the highest level of readiness in each theater of war.
Perform any combination of 50 biotic combos or tech bursts.
Lift 100 enemies off the ground with powers.
Send a warning across the galaxy.
Finish all multiplayer maps or all N7 missions in single-player.
Kill 1,000 enemies.
Extract ancient technology.
Deliver most of the Galaxy at War assets to the final conflict.
Call down an orbital strike.
Disable a group of fighter squadrons.
Reach level 15 in multiplayer or level 50 in single-player.
Complete three multiplayer matches or five N7 missions.
Kill 100 enemies with melee attacks.
Sabotage a dreadnought.
Evacuate a scientific facility.
Establish or rekindle a romantic relationship.
Discover an enemy's monstrous origin.
Win a political stand-off.
Explore a lost city.
Defeat a Harvester.
Obtain two non-customizable suits of armor.
Survive the swarm.
Destroy an Atlas dropped from orbit.
Stop a Cerberus kidnapping.
Kill 250 enemies.
Bring a veteran officer aboard.
Set 100 enemies on fire with powers.
Kill a brute while it's charging you.
Dispatch 10 probes to retrieve people or resources in Reaper territory.
Escape a Reaper in the galaxy map.
Complete one multiplayer match or two N7 missions.
Start a character in multiplayer or customize a character in single-player.
Evolve any of your powers to rank 6.
Visit a store in the single-player campaign.
Chase down an assassin.
Modify a weapon.
Return to active duty.
